基于功率系数的风电上网电价研究  

Study on Wind Power Grid Price Based on Power Coefficient

作　　者：李秀芝 杨俊华[1] 吴捷[2] 

机构地区：[1]广东工业大学自动化学院,广东广州510006 [2]华南理工大学电力学院,广东广州510641

出　　处：《广东电力》2014年第1期24-29,共6页Guangdong Electric Power

基　　金：国家自然科学基金重点项目(60534040);国家自然科学基金项目(60904078);广东省教育厅专项重点实验室(IDSYS200701);广东高校优秀青年创新人才培养计划项目(2012LYM_0052);广州市科技攻关项目(11A52081158)

摘　　要：针对风电场不稳定输出功率接入电网引起的稳定性问题,提出一种基于修正标杆电价和功率系数的风电上网电价规定与制度方法。首先将电价、等效满负荷小时数作为可变参数,以内部收益率作为目标函数,联合敏感性分析,修正现行标杆电价;其次,在限定1 min和10 min内风电并网功率波动最大变化率下,设计可反映并网功率平滑度和实时功率预测准确性的评价指标,建立基于功率系数的定价模型。通过算例分析,验证了所提出方法的有效性和灵活性。Aiming at stability problem caused for reason of unstable output power of wind power station connecting grid,this paper proposes a kind of wind power price provision and system method based on correctional benchmarking price and power coefficient.Firstly it uses price and equivalent full load hour as variable parameters,takes internal rate of return as target function and rectifies current benchmarking price by using sensible analysis.Secondly,it designs evaluation index which is a-ble to reflect on-grid power smoothness and veracity of real-time power forecast based on maximum rate of change of wind power on-gird power fluctuation in restrictive one minute and 1 0 minute.Meanwhile,it discusses establishment of pricing model on the basis of power coefficient.By example analysis,it verifies effectiveness and flexibility of proposed method.

关 键 词：风电电价 内部收益率 功率平滑度 风电功率预测 功率系数 电力市场 

分 类 号：TM614[电气工程—电力系统及自动化]